Metal-cased pipe-covering.



Patented June 29, 1909.

@noch l'oz G. G. KELLY. METAL GASED PIPE GOVERING.

' APPLIOATION FILED 00T. 9, 1906.

. UNITED sTATEs PATENT oEEroE.

CHARLES G. KELLY, OI" PHILADELPHIA, PENNSYLVANIA.

METAL-CASED PIPE-COVERING'.

Specication of4 Letters Patent.

Application filed October 9, 1906. Serial No. 338,147.

To all 'whomit may concern:

Be it known that I, CHARLES G. KELLY, a

`mechanical injury and the subject of joints for separate pipe coverings both longitudinally and transversely united has given considerable trouble.

The purpose of this invention -is to provide a pipe casing and covering which shall maintain the shape of the cover in rigid form, shall be readily and quickly separable and attachable, shall itself form a bowl for the material of which the casing chiefly composed and shall provide reliable fastenings and junctions both for straight pipe lengths and Afor angles and connections.

Figure 1 represents a perspective view of a cross-connection embodying my invention, the ends being sectioned to show the pipe and covering. Figs. 2 and 3 represent corresponding views of a simple connection and a cornerlor bend. Fig. 4 represents an elevation partly broken away to show a section of pointed straight piecesof the. outer casing Without the filling material. Fig. 5 represents a transverse sectiouof the parts of my pipe covering in separated position. Fig. 6 represents a transverse section of my pipel casing and covering in place about a pipe. Figure 7 represents a modified form of joint.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates a .pipe which is in the form shown in Fig. 1,

cross-jointed to form connection 2 completing a four-Way joint. This is covered by an outer metallic casing formed in two sections 5 and 6 divided preferably approximately in the -central plane. of the two lpipes and containing the filling material 7 Which is set Within each of the casing parts, using them I as a mold, and is divided at the central plane. and rearwardly bent to form a portion 8, bent back again and spaced at 9 returning upon itself and in the direction of the initial extension of the metal 10 to provide a pocket between the parts 8 and 10 to receive an extension 11 fr om the member 6, said extension 11 being formed at the end of an inward bend 12, whose purpose is to bring the material of the extension 11 in line with the pockportion 5. .A similar form of connection is used to form a longitudinal joint in each of the forms which I have illustrated, this joint being the same about the straight, curved Fig. 2 the pipe 14 is joined by p1pe-15 to make a T or three-way connection. The portions 16 and 17 correspond in general shape to the T just as the portions 5 and 6 correspond to the cross-connection of Fig. 1. In Fig. 3 a curved form is shown in which tcctions for the material therein shown and are arranged to cover any bend `or turn 1n the pipe 20. In all of these formsthe parts are nection, preferably a swinging arm 21. Pivot 22 is sufficiently looseto permit .this strip 21 to swing about the pipe and mto place over button o1' nut 23 which hes within slot 24. f

In Fig. 4 the longitudinal'connection which I preferably use is shown. The end of the outer casing 25, is inwardly and rearwardly turned at 25', extends as at 26, is again turned at 27, allowing a space 27 between the part 26 and the return 28 within which the edge 29 is adapted to be passed. I/Vhilc this joint is desirable upon the joining ends of the pipe it is most desirable for the longitudinal joints in that the curvature of the space 13 and corresponding curvature of the edge 11 from the other member make these parts spring into place and cause a more effective joint for all purposes than would be possible with the closeness of fit, permissible vbetween metals which must be stamped to place and parts for which must be inten changeable although made by dulerent dies.

Fig. 7 indicates a modified form of long1- tudinal joint in which the material is extendled, as at 30 to the end 31 of the femaleinemet 13 between the extensions 8 and 10 of thesections 1S and 19 oifer the forms and p`ro,

Patentedrun 29, 1909.

One outer casing part is inwardly l and connecting pipes.l In the formlshown in retained about the pipe by any suitable conber and the material upon the opposite side of the joint is correspondingly cut away, as at 3,4. v

It Will be apparent that my longitudinal and transverse joint may be used With other `forms of securing mechanism Within the I claim as new and desire to secure by'Let-ters Patent, is j l. In a device ofthe character described, a casing longitudinally divided in halves and a filling therefor in combination with a longitudinal junction for each edge of said casing,

comprising reversely bent edges from one member, forming curved pockets and extensions from the other member fitting into said pockets. I

2. In a device 'of the character described, a metallic casing longitudinally divided in halves, a filling therefor, a pivoted latch retaining the parts in closed position and a longitudinal spring joint between each pair of adjoining edges of the two halves formed by successive reverse bends-upon one part to form a circumferentially curved pocket and a cireumferentially curved coperating edge upon the other of the meeting parts. Y

3. A casing for pipe joinedat an anglo, comprising longitudinally divided rigid half covers similar to the joint formed by the pipe, kfilling material Within said covers, pockets formed along the meeting edges of said covers byreverse bending of the covers, and projecting curved edges coperating with said pockets.

4. A casing for pipe joined at an angle comprising longitudinally divided half covers similarstg the joint, coperating interiitting curved edges and pockets upon the covers and filling material within the halves.

5. A casing for pipe joined at an angle, comprising longitudinally divided half covers conforming to the shape of the joint and provided With curved edges and mating curved projections inset from the surface of the cover respective] filling material Within the halves, and ,a atch for retaining thc covers together. j

CHARLES G. KELLY. Witnesses:

WM. T. JACKSON, JOHN A. WIEDERSHEIM. 

